Inventus Power, Inc.

Lucas H Sturnfield

Ilyas Ayub

Jason Fuglestad

Rogelio Colin

A method and apparatus for waking a battery pack from a dormant mode via shaking. The battery pack has a piezo electric device coupled to a semiconductor control circuit providing a power path between a positive terminal of a battery cell and a boot input of an ASIC charge/discharge controller powered by the battery cell. Shaking of the piezo electric device energizes the semiconductor control circuit, which engages the power path to power the initial booting of the ASIC charge/discharge controller.

Method and apparatus for shake awake smart battery pack

An energy storage system with an energy storage cell coupled to a battery management system provided with a charge control circuit, a discharge control circuit and a maintenance discharge control circuit. The maintenance discharge control circuit including a voltage booster coupled to a constant current/constant voltage (CC/CV) regulator. Each of the charge control circuit, the discharge control circuit and the maintenance discharge control circuit are coupled between the battery management system and a host power rail. The voltage booster is operable to raise a voltage from the energy storage cell to a CC/CV regulator input voltage greater than a voltage of the host power rail, enabling the CC/CV regulator to provide a selected maximum voltage and corresponding maximum current to the host power rail during a maintenance discharge cycle of the energy storage cell.

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Downers Grove, IL, United States of America

Lucas H Sturnfield